Citrulline: what it does, by goal, and the dose that worked
What the 61 human studies of citrulline we graded show for each goal, the dose that worked, and the products that hold it. This page is educational, not medical advice.
What it does, by goalMembersThe top 3 of 3 goals
1 of these 61 human studies gave citrulline by drip, not by mouth.
| Goal | What the studies show | Studies | Dose that worked |
|---|---|---|---|
| Improved in studies 30 studies, 15 showed an improvement, 7 found none, 3 pooled analyses, 1 by drip, injection or inhaler | 30 | 2 g | |
| Improved in studies 8 studies, 5 showed an improvement | 8 | 800 mg | |
| No effect in studies 27 studies, 8 showed an improvement, 11 found none, 7 pooled analyses | 27 | 6 g |
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Products – highest ranked firstMembersThe top 3 of 3
Dose and safetyThe dose that worked and the upper limit
The studies taken by mouth that showed an improvement gave 800 mg to 10 g a day.
Biohacker panelMembersWhat our 10 biohackers say about citrulline
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Questions people askMembersAnswered from the figures on this page
What is citrulline good for?
Answer for members.
How much citrulline a day?
Answer for members.
Can I take citrulline with my meds?
Answer for members.
Members see the answers, checked against their own meds and goals. Start My 7-Day Free Trial →
Educational, not medical advice. Figures come from the human studies on PubMed we have graded; a study counts for a form when it names the form it used. Updated as new studies arrive. How we grade →